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[Xen-ia64-devel] [PATCH] add one BUG_ON() to allocate_metaphysical_rr()

from [Isaku Yamahata]

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Subject:	[Xen-ia64-devel] [PATCH] add one BUG_ON() to allocate_metaphysical_rr()
From:	Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
Date:	Wed, 20 Aug 2008 15:39:07 +0900
Cc:	Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
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[IA64] add one BUG_ON() to allocate_metaphysical_rr()

add one BUG_ON() to allocate_metaphysical_rr() to make sure
that rid for metaphysical address isn't collided.

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>

diff -r 3ad6ad720f90 xen/arch/ia64/xen/regionreg.c
--- a/xen/arch/ia64/xen/regionreg.c     Thu Aug 14 11:00:35 2008 +0900
+++ b/xen/arch/ia64/xen/regionreg.c     Wed Aug 20 15:11:39 2008 +0900
@@ -80,6 +80,7 @@
 static unsigned long allocate_metaphysical_rr(struct domain *d, int n)
 {
        ia64_rr rrv;
+       BUG_ON(d->arch.starting_mp_rid + n >= d->arch.ending_mp_rid);
 
        rrv.rrval = 0;  // Or else may see reserved bit fault
        rrv.rid = d->arch.starting_mp_rid + n;

fix-efi-rr6.patch
Description: Text Data

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